This is the company number which is normally shown on the locomotive.
Where several numbers were carried throughout the life of the locomotive,
these are shown using the convention developed by the Bytown Railway Society
in the Canadian Trackside Guide.
No# indicates that the locomotive did not carry a number.

Builder

This column shown the builder or manufacturer of the locomotive. They
are normally shown in full although some of the more well known ones have
been abbreviated:

This is the serial number or works number allocated by the builder.
In numerous cases the serial is not known and I have developed a system which
allocates a unique number to each locomotive which is prefixed “uu”.
This will assist in solving some of the unknowns. In some cases serial
numbers were not used.

Date

This shows the date of manufacture where known by year and month.

Type

Unless otherwise shown in this column all locomotives are standard gauge.
Other gauges are shown by the notation x” ga where x is the gauge in inches.
For steam locomotives, the Whyte notation is used to denote the wheel arrangement.
For internal combustion engine locomotives the builder’s model designation,
where known, is shown.

Display means that the locomotive has been preserved either for operation
or as a static exhibit. These details have not been recorded here as
they are well covered in the Canadian Trackside Guide.
DU means “Disposition Unknown”. Many locomotives
are in this category. In most cases they will have been scrapped on
site but this is not shown unless this can be confirmed.
Scr means “Scrapped” and the date is shown where known.
If the locomotive was sold for scrap to a dealer this is normally shown in
the “notes” column.
USA means that the locomotive was sold into the USA.

Notes

This column sets out the history of the locomotive in as much detail as is
known.
The various owners are shown in chronological sequence from first to last.

n owner when new.
1 first known owner when the new owner is not known.
2 second owner.
3 third owner – and so on.

[ ] indicates an owner in Canada.
( ) indicates an owner in the USA.
{ } indicates a country unknown.
< > indicates a Canadian “non industrial” owner such
as a display, museum or heritage railway.
p indicates that photographic evidence exists of this locomotive
at this particular location.
(D) Indicates an equipment dealer